Home / 91,014,821.20-136,522,231.80-60,403,819.60

Finding the Fourth Proportional to 91,014,821.20, 136,522,231.80 and 60,403,819.60

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Solution

The fourth proportional to 91,014,821.20, 136,522,231.80 and 60,403,819.60 is: 90,605,729.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,014,821.20 : 136,522,231.80 = 60,403,819.60 : x
  2. Step 2: Convert to fraction form
    91,014,821.20/136,522,231.80 = 60,403,819.60/x
  3. Step 3: Cross multiply
    91,014,821.20x = 136,522,231.80 × 60,403,819.60
  4. Step 4: Simplify right side
    91,014,821.20x = 8,246,464,261,036,584
  5. Step 5: Solve for x
    x = 8,246,464,261,036,584/91,014,821.20
  6. Step 6: Final answer
    x = 90,605,729.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.